[The venous valve: non-invasive imaging of its functioning].
B Mode and TM mode Imaging are useful tools to illustrate directly the venous valve motion. Using B Mode, venous valve are echogenic with a particular kinetic as regards its topography. So it's possible to determine in TM Mode a "pseudo-cardiac" valvular motion (jugular vein) and a "pseudo-diaphragmatic" motion for the lower limbs veins. Valvular motion assures unidirectional venous flow.
Laroche
J P
JP
Unité d'Angiologie, CHU Montpellier, Hôpital Saint-Eloi.
Dauzat
M
M
Muller
G
G
Janbon
C
C
D006801:Humans; D018608:Ultrasonography, Doppler; D018615:Ultrasonography, Doppler, Color; D018617:Ultrasonography, Doppler, Pulsed; D014666:Vasomotor System / Q000000981:diagnostic imaging*; D014680:Veins / Q000000981:diagnostic imaging*
Valvule veineuse: imagerie non invasive de son fonctionnement.